I suspect that this so called "Trusted DWG" issue also serves as a thinly disguized attempt by the AutoDesk company to instill a fear of using their competetor's drawing software and related products thus giving them an unfair seeming monopoly on so called trustworthy CAD software. This may have stemmed from the fact that they A) charge an arm and a leg for somthing that their competition seems to also be able to supply for significantly less & B) seem to update their software at least every year with changes in file format, menus, ect. sometimes seeingly just to have somthing new to make customers think that they have to have the latest and greatest locking them into spending & spending & spending...... can they get more greedy? Do they fear their competition that much? Time to lower their price to somthing mere mortals can afford!!!!!
To be fair some other CAD software out there has totally sucked and AutoCad's software should warn users of problems when opening these files, but come on guys: Warnings even after resaving with so-called-trusted-autodesk-dwg-format-capable-soft
Creating a totally new empty ACAD DWG formated document then inserting the so-called untrusted ine into it and resaving the newly created drawing in DWG format does so far eliminate the warning problem once and for all future access to it (unless it gets reopened and resaved by non-autodesk CAD software).
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